HAVE TO, HAVE NOT TO, MUST, MUSTN'T

I ________ do clean my room today. I can do it tomorrow.

I don't like these clothes, but I ... wear them at work.

Teacher: "You ... arrive on time for class"

You ... tell anyone; it's a secret.

The doctor has put me on a strict diet. I .... eat more fruit and vegetables and do more exercise.

You .... apologise, it isn't necessary

Do you ..... work at night? This is a day off.

You ... go now; you can stay a bit longer

You ... drive so fast; we have a lot of time

We ... cook more; there's enough food

You ... smoke here; smoking is not allowed.

I .... be late. It's the most important meeting of the year.

You ... do something to solve this problem

You .... put salt in her food; the doctor said she can't eat salt.

Visitors in the zoo .... feed the animals.